Besides a number of already mentioned bugs (but no crashes yet), I've had the following: (apologies if they have been mentioned, I only glanced through the posts)
In Dwarf Fortress Mode, immediately after appointing an appraiser, I noticed that Cave Fish (3) had appeared as forbidden in my stocks. When I zoomed to it, it was several levels down in an unexplored area. I was able to unforbid it and it still appears in my stocks list, though it is still in an unexplored area. I also have a large number of remains from unexplored areas appearing in my stocks list.
Also in Fortress mode, one dwarf in particular keeps sleeping on the ground next to a free bed in the dormitory. He is complaining about sleeping without a proper room, but not specifically about sleeping on the floor.
In Arena Mode, a damaged iron man finished beating a gorilla to death, when it suddenly took off to the north-west at an incredible speed and was killed in a collision "with an object". Even if iron men are supposed to walk into walls and die, I suspect this is a bug due to the sheer speed of his movement. I've not been able to replicate this.
Also had a single unarmed elephant with no skills successfully fight off a few waves of dragons with minor damage, also unable to replicate this. Running it on Linux with WINE, if that matters.